just wondering would it be safe if i just took a leaf blower or a air gun and just started blowing all the dust, dirt and crap out of my engine bay? thanks.

just wanted to be on the safe side just incase i wasn't supppose to blow the dirt somewhere and ruin anything...

 

shop air would be best that way you can get into all the nooks and cranny's

 

Try searching next time...it took me all of 10 seconds to find this:
https://www.scionlife.com/forums/vie...ing+engine+bay

 

if you're going to clean the engine bay, use degreaser and water

why use a leafblower? Would you use a leafblower to try to clean a dirty car?

 

Two words: SIMPLE GREEN